INTEGRATED CIRCUITS 74F545 Octal bidirectional transceiver (with 3-State inputs/outputs) Product specification IC15 Data Handbook 1990 Mar 01 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) FEATURES 74F545 PIN CONFIGURATION • High impedance NPN base inputs for reduced loading (70µA in High and Low states) output • 8-bit bidirectional data flow reduces system package count • 3-State inputs/outputs for interfacing with bus oriented systems • 24mA and 64mA bus drive capability on A and B ports, respectively • Transmit/Receive and Output Enable simplify control logic DESCRIPTION The 74F545 is an 8-bit, 3-State, high speed transceiver. It provides bidirectional drive for the bus-oriented microprocessor and digital communications systems. Straight through bidirectional transceivers are featured, with 24mA bus drive capability on the A ports and 64mA bus drive capability on the B ports. One input, Transmit/Receive (T/R) determines the direction of logic signals through the bidirectional transceiver. Transmit enables data from A ports to B ports; Receive enables data from B ports to A ports. The Output Enable input disables both A and B ports by placing them in a 3-State condition. The 74F545 performs the same function as the 74F245, the only difference being package pin assignment. A0 1 20 VCC A1 2 19 B0 A2 3 18 B1 A3 4 17 B2 A4 5 16 B3 A5 6 15 B4 A6 7 14 B5 A7 8 13 B6 OE 9 12 B7 GND 10 11 T/R SF01032 TYPE TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL) 74F545 4.0ns 87mA ORDERING INFORMATION DESCRIPTION COMMERCIAL RANGE VCC = 5V ±10%, Tamb = 0°C to +70°C PKG DWG # 20-Pin Plastic DIP N74F545N SOT146-1 20-Pin Plastic SOL N74F545D SOT163-1 INPUT AND OUTPUT LOADING AND FAN-OUT TABLE PINS DESCRIPTION 74F(U.L.) HIGH/LOW LOAD VALUE HIGH/LOW A0–A7, B0–B7 Data inputs 3.5/0.117 70µA/70µA OE Output Enable input (active Low) 2.0/0.067 40µA/40µA T/R Transmit/Receive input 2.0/0.067 40µA/40µA A0 - A7 Port A 3-State outputs 150/40 3.0mA/24mA B0 - B7 Port B 3-State outputs 750/107 15mA/64mA NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state. 1990 Mar 01 2 853–0375 98992 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) LOGIC SYMBOL 74F545 LOGIC SYMBOL (IEEE/IEC) 1 2 3 4 5 6 7 8 9 G3 3EN1 A0 9 OE 11 T/R A1 A2 A3 A4 A5 A6 A7 11 3EN2 1 1 B0 VCC = Pin 20 GND = Pin 10 B1 18 19 B2 17 B3 16 B4 B5 15 14 B6 13 B7 19 2 2 18 3 17 4 16 5 15 6 14 7 13 8 12 12 SF01033 SF01034 LOGIC DIAGRAM A0 A1 1 2 A2 A3 3 4 A4 5 A5 6 A6 7 A7 8 OE 9 11 T/R 19 VCC = GND = B0 Pin 20 Pin 10 18 B1 17 16 B2 B3 INPUTS H L X Z = = = = OUTPUTS T/R L L Bus B data to Bus A L H Bus A data to Bus B H X High voltage level Low voltage level Don’t care High impedance “off” state 1990 Mar 01 14 B5 13 B6 12 B7 SF01035 FUNCTION TABLE OE 15 B4 Z 3 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) 74F545 ABSOLUTE MAXIMUM RATINGS (Operation beyond the limits set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL PARAMETER RATING UNIT V VCC Supply voltage –0.5 to +7.0 VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5.0 mA VOUT Voltage applied to output in High output state IOUT O Current applied to output in Low output state Tamb Operating free-air temperature range Tstg Storage temperature –0.5 to +5.5 V A0–A7 48 mA B0–B7 128 mA 0 to +70 °C –65 to +150 °C RECOMMENDED OPERATING CONDITIONS SYMBOL LIMITS PARAMETER MIN NOM MAX 5.0 5.5 UNIT VCC Supply voltage 4.5 VIH High-level input voltage 2.0 VIL Low-level input voltage 0.8 V IIK Input clamp current –18 mA IOH O High level output current High-level A0–A7 –3 mA B0–B7 –15 mA IOL O Low level output current Low-level A0–A7 24 mA 64 mA Tamb Operating free-air temperature range 70 °C 1990 Mar 01 B0–B7 0 4 V V Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) 74F545 DC ELECTRICAL CHARACTERISTICS (Over recommended operating free-air temperature range unless otherwise noted.) SYMBOL A0–A7 B0–B7 VOH High-level out output ut voltage B0–B7 A0–A7 VOL Low-level out output ut voltage B0–B7 VIK LIMITS TEST CONDITIONS1 PARAMETER Input clamp voltage VCC = MIN, MIN VIL = MAX MAX, VIH = MIN VCC = MIN, MIN VIL = MAX, MAX VIH = MIN IOH = –3mA IOH = –15mA IOL = 24mA IOL = MAX MIN ±10%VCC 2.4 ±5%VCC 2.7 ±10%VCC 2.0 ±5%VCC 2.0 TYP2 MAX UNIT V 3.3 V V V ±10%VCC 0.35 0.50 V ±5%VCC 0.35 0.50 V 0.55 V 0.42 0.55 V –0.73 ±10%VCC ±5%VCC –1.2 V OE, T/R VCC = 0.0V, VI = 7.0V VCC = MIN, II = IIK 100 µA A0–A7, B0–B7 VCC = 5.5V, VI = 5.5V 1.0 mA VCC = MAX, VI = 2.7V 40 µA VCC = MAX, VI = 0.5V –40 µA II Input In ut current at maximum input voltage IIH High-level input current IIL Low-level input current IOZH+IIH Off-state output current High-level voltage applied VCC = MAX, VI = 2.7V 70 µA IOZL+IIL Off-state output current Low-level voltage applied VCC = MAX, VI = 0.5V –70 µA IOS Short-circuit output current3 –60 –150 mA –100 –225 µA OE, T/R only A0–A7 VCC = MAX B0–B7 ICCH ICC Supply current (total)4 ICCL VCC = MAX ICCZ T/R=An=4.5V, OE=GND 84 100 mA OE=T/R =Bn=GND 96 120 mA T/R=Bn=GND, OE=4.5V 96 120 mA NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value under the recommended operating conditions for the applicable type. 2. All typical values are at VCC = 5V, Tamb = 25°C. 3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any sequence of parameter tests, IOS should be performed last. 4. Measure ICC with outputs open. AC ELECTRICAL CHARACTERISTICS SYMBOL tPLH tPHL tPZH tPZL tPHZ tPLZ 1990 Mar 01 PARAMETER Propagation delay An to Bn, Bn to An Output Enable time to High or Low level Output Disable time from High or Low level LIMITS Tamb = +25°C Tamb = 0°C to +70°C VCC = +5.0V VCC = +5.0V ± 10% CL = 50pF, RL = 500Ω CL = 50pF, RL = 500Ω MIN TYP MAX MIN MAX 1.5 3.5 5.5 1.5 6.5 2.5 4.5 6.5 2.5 7.0 6.0 8.5 10.5 6.0 11.0 5.5 8.0 9.5 5.5 10.0 2.5 5.0 7.0 2.5 8.0 2.0 4.5 6.5 2.0 7.5 TEST CONDITIONS Waveform 1 Waveform 2 Waveform 3 Waveform 2 Waveform 3 5 UNIT ns ns ns ns ns ns Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) 74F545 AC WAVEFORMS For all waveforms, VM = 1.5V. OE An, Bn VM VM VM tPLH VM tPZL tPHL tPLZ An, Bn VM Bn, An VM VM VOL+0.3V SF00204 SF00202 Waveform 1. Propagation Delay Data for Non-Inverting Output Waveform 3. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level OE VM VM tPZH tPHZ VOH–0.3V VM An, Bn 0V SF00203 Waveform 2. 3-State Output Enable Time to High Level and Output Disable Time from High Level TEST CIRCUIT AND WAVEFORM VCC 7.0V VIN RL VOUT PULSE GENERATOR tw 90% NEGATIVE PULSE VM CL AMP (V) VM 10% D.U.T. RT 90% 10% tTHL (tf ) tTLH (tr ) tTLH (tr ) tTHL (tf ) 0V RL AMP (V) 90% 90% Test Circuit for 3-State Outputs POSITIVE PULSE VM VM 10% TEST tPLZ tPZL All other SWITCH closed closed open DEFINITIONS: RL = Load resistor; see AC electrical characteristics for value. CL = Load capacitance includes jig and probe capacitance; see AC electrical characteristics for value. RT = Termination resistance should be equal to ZOUT of pulse generators. 10% tw SWITCH POSITION 0V Input Pulse Definition INPUT PULSE REQUIREMENTS family amplitude VM 74F 3.0V 1.5V rep. rate tw tTLH tTHL 1MHz 500ns 2.5ns 2.5ns SF00777 1990 Mar 01 6 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) DIP20: plastic dual in-line package; 20 leads (300 mil) 1990 Mar 01 7 74F545 SOT146-1 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) SO20: plastic small outline package; 20 leads; body width 7.5 mm 1990 Mar 01 8 74F545 SOT163-1 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) NOTES 1990 Mar 01 9 74F545 Philips Semiconductors Product specification Octal bidirectional transceiver (with 3-State inputs/outputs) 74F545 Data sheet status Data sheet status Product status Definition [1] Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make chages at any time without notice in order to improve design and supply the best possible product. Product specification Production This data sheet contains final specifications. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. [1] Please consult the most recently issued datasheet before initiating or completing a design. Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Disclaimers Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 print code Document order number: yyyy mmm dd 10 Date of release: 10-98 9397-750-05136